->1. Heating Advantage

When planes are painted with black or shades of black it gets it absorbs suns heat thus making whole plane hot which means added cost to cool down the airplane which in turn means more fuel.

But when they are painted white they repel suns radiation and thus do not absorb heat as much as black which makes cabin and flight cool.Thus reducing the effort to keep plane cool.Which in turn results in less fuel consumption.

->2. Easier Crack and dents inspection

Airlines are regularly inspected for passenger safety reasons.And it s always better to paint Airplane white as it makes inspection easier because cracks are darker than white.Thus reducing efforts to spot the abnormality.

->3. Resale value of the Plane

Resale value of colored airplane decreases drastically over short periods of time means less money after you sell it.Because after selling the plane the buyer has to paint it white for reasons mentioned above.Hence it makes complete sense to pay less for the colored airplane.Now you see the aim of the airline is minimize the cost as far as possible.

->4. Colored Planes fade Away

The altitude at which planes fly exposes them to really harsh conditions which in turn fades the colored plane.Which means you have to paint colored plane more often.Which means more money and time as it takes minimum 7 days to paint reasonably sized plane completely.